The new shape of the American family

An evolution of care, connection and independence.

The picture of the American family has changed. In 1970, 67% of Americans ages 25 to 49 were living with a spouse and at least one child under 18, according to Pew Research Center. Now, that number is just 37%. Meanwhile, every other family structure – cohabitating couples, single-person households, blended families, unpartnered with children and same-sex unions – have increased.

Shifting societal norms, broader definitions of care, economic realities and longer lifespans have transformed today’s home life. This evolution brings about new considerations. More Americans are living without the traditional support of spouses or children. That means planning ahead is more important than ever. Community resources and broader circles of care can play a key role in helping people secure their well-being in the years ahead.

Contributing factors

The diversification of family structures is rooted in a growing cultural movement toward self-actualization and the increasing acceptance of nontraditional life choices. According to Pew Research, fewer people view marriage and parenthood as central to a fulfilling life; just 23% and 26%, respectively. That’s significant when compared to 71% who prioritize having a career they enjoy and 61% who cited close friendships.

Beyond changing personal priorities, societal forces have played a role in reshaping American households. Economic pressures, including the high cost of housing and childcare, are deterrents for having children. Gone are the days of a mom, a dad and 2.5 children. Today’s fertility rate hovers around 1.6 children in the US.

These shifts aren’t just cultural, they’re technological and social too. Advances in reproductive technology and an increase of LGBTQ families have opened new paths for creating family. There is no longer a single dominant model; instead, people are building support systems and household structures that reflect their own values and circumstances.

Practical implications

Modern household trends and aging solo are deeply connected, both reflecting a shift away from traditional norms of marriage and child-rearing. As fewer people marry and have children, the rise of single-person households and child-free lifestyles directly fuels this growing trend.

Traditional models assumed built-in caregiving from spouses or children, but today’s support systems don’t have defined roles per se. Responsibilities aren’t necessarily expected or explicit. Further, many people have made conscious life choices with the intention of aging solo.

According to US Census data, one-third of Americans age 55 to 74 and half of those 75 and older live alone. Experts predict this trend will continue to grow as marriage and fertility rates drop. Aging solo may not have always been an intentional choice; for many, it’s the result of loss or divorce. Increasingly, we’re seeing people embark on this solo journey in the name of independence. No matter what the reason, it will require well-planned strategies for housing, healthcare and social support.

It’s important to consider what this lifestyle may mean and what deliberate preparations can provide for those planning to age alone. The independence and flexibility of solo aging can afford the freedom to launch a second-act career, relocate to a new city (or even country) and commit to an involved hobby. But it also has practical considerations around care and well-being, like maintaining social connections while living alone and identifying who can be counted on in the event of a health crisis.

Financial advisors and other professionals, like attorneys, can help identify the right resources for support. An aging life care manager, professional fiduciary or trusted relative or friend may be able to step in when assistance is needed. Those aging alone will still need an estate plan, but the role of the executor won’t naturally fall to traditional candidates.

Individuals can lean on communities they already value, like church groups, community organizations or members clubs, to stay social. Embracing technology can also help maintain connections made throughout life. Ironically, some of the planning for aging solo is making sure that no one is truly alone.

Future outlook

The evolution of the modern American family has opened up the possibilities for people to live on their own terms. But as the trend grows, community planning and housing design for aging adults will need to adapt.

Some initiatives are already underway, like AARP’s Network of Age-Friendly States and Communities, which has more than 1,000 participating communities nationwide. Many of these areas are redesigning sidewalks, expanding public transit, improving accessibility and integrating affordable housing and aging-in-place programs. There are also grant programs available, like the AARP Community Challenge Grant and Retirement Research Foundation (RRF), that offer funds for projects that improve the quality of life for older Americans.

Family hasn’t disappeared; it’s just been redefined. The American household looks different today, and that changes how we think about care and connection. As old roles fade and new household dynamics take shape, planning ahead – whether you’re raising kids, sharing life with a partner or navigating aging solo – takes thought and intention. Strong networks and community support matter more than ever. Because now, family is less about structure and more about the people who show up for you … and that’s something worth planning for.

Sources: Pew Research Center; AARP; Centers for Disease Control and Prevention; RRF